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Finding the Fourth Proportional to 18,793.62, 25,905.42 and 14,808.42

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Solution

The fourth proportional to 18,793.62, 25,905.42 and 14,808.42 is: 20,412.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793.62 : 25,905.42 = 14,808.42 : x
  2. Step 2: Convert to fraction form
    18,793.62/25,905.42 = 14,808.42/x
  3. Step 3: Cross multiply
    18,793.62x = 25,905.42 × 14,808.42
  4. Step 4: Simplify right side
    18,793.62x = 383,618,339.64
  5. Step 5: Solve for x
    x = 383,618,339.64/18,793.62
  6. Step 6: Final answer
    x = 20,412.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.